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Sea Turtle Mortality Tracked With GPS-Equipped ‘Frankenturtles’

Though the numbers of Loggerhead sea turtles that swim into Chesapeake Bay each year are staggering -- 5,000 to 10,000 come in annually to feed -- there really aren’t that many of the turtles swimming elsewhere. As a species, the turtles are listed as threatened because they have a lot to contend with in the ocean. Known threats like pollution, habitat loss and ship propellers commonly contribute to sea turtle mortality. But one big question remains for a few researchers near the bay: What happens to the carcasses of the dead turtles? Scientists at the Virginia Institute of Marine Science (VIMS) are using a novel approach to finding an answer.

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Flood Warning Systems

Chapter Overview: Flood Warning A Real-Time Solution Streamflow Measurements Typical Flood Warning System Monitoring Location Data Management Quality Assurance Recommended Equipment Why Monitoring Matters While some areas are more prone to flooding than others, the establishment of flood warning systems near any major waterway or body of water provides critical information that can protect property and save lives. Of course, the most effective flood warning methods extend beyond the installation of gages and telemetry equipment, and employ qualified staff and carefully designed procedures to provide the earliest warning about whether a flood should be expected, when it will occur, and how severe it will be.

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Coral Bleaching Hits Clownfish Habitat Selection

With the pace of coral bleaching picking up in recent years, prospects for fish that depend on them as habitat aren’t looking too good. Take clownfish, a species that is fiercely reliant on anemones over the course of their lives. Found exclusively in the Indo-Pacific, clownfish are symbiotic animals that only live in sea anemones, a close relative of corals that don’t have a hard outer shell. The anemone provides a home and protection for the clownfish, while the clownfish provides food for the anemone.

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Sediment Cores Show Greenland Changes

Scientists try to predict the future by looking at the past all the time. One recent example of this is an investigation led by those at the University at Buffalo relying on sediment cores taken from a lake in Greenland to reconstruct how Arctic precipitation fluctuated over the past several millennia. With that information, their hopes were to gauge how the Greenland Ice Sheet has fluctuated in a past when warmer temperatures were more common. To approach that question, researchers extracted a long, cylindrical sediment core sample from a lake bottom in western Greenland. The mud in the sample contained ancient leaf waxes, with the oldest at the base of the column and the youngest at the top.

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